Pressure-regulator.



No. 7l3,25l. Patented Nov. ll, I902.

C. F.. SPERY.

PRESSURE REGULATOR.

(Applicltion filed Jan. 25, 1902M No Model.)

UNITED STATES CHARLES F. SPERY, OF

PATENT OFFICE.

OF ROCKFORD, ILLINOIS.

. PRESSURE-REGULATOR.'

SPECIFICATION forming part of Letters Patent No.

718,251, dated November 11, 1902.

Application filed January 25,1902. Serial No. 91,l77. (No modei) To all 1111 101711 it may concern:

Be it known that I, CHARLES F. SPE'BY, a citizen of the United States, residing at Rockford, 'in the county of Winnebago and State of Illinois, have invented certain new and useful Improvements in Pressure-Regulators, of which the following is a specification.

The object of this invention is to construct a regulator for air or water pressure and an to automatic switch controlling the power supplying the air or water.

In the accompanying drawing is shown a face representation of my improvements.

In this instance the parts going to make up my system are supported by a base 1. A

cleat 2 is secured to the base-board and supports a pump 3 and electric motor t. A wheel 5 is supported by the stud 6, extending from the baseboard. A piston-rod 7 has a connection with the wheel 5 by the link 8. Pipes 9 and 1 connect with the lower end of the pump. The pipe 10 has a T 11, and the pipe 12 leads to the place of use. A pipe l3 eonnects with the T and supports a gage 14. The

:5 pipe supports an elbow 1.5,t0 which is connected a section of pipe in. The upper end of the pipe 16 supports a casing for a diaphragm and switch mechanism. The casing for the diaphragm is in two parts 17 and 18,

30 having a screw-threaded connection. A diaphragm 11", of elastic material, is supported by the casing. The upper section of the die has the casing 20, containing hragm-casing the switch. mechanism, connected thereto.

This switch mechanism comprises the rod 21, connected to the diaphragm and extending upward through the casing. The upper portion of the casing has a tubular extension 22, internallyscrew-threaded, and a plug .33 has a screw-thread connection with the extension and its central opening forms a guide for the rod. A lock-nut 24 holds the plug against accidental movement. To the rod 21 is secured a bracket 25, having its free end perforated and internally screw-threaded. A plug 26 has a screw-thread connection with the opcningi the bracket To the bracket is pivoted an arm 27, having its free end pointed in wedge shape. A coiled spring 28 is located in the opening in the bracket 'ing the motor and wheel 5,

and bears against the arm 27, the plug 26 serving to vary the pressure of the spring against the arm. A coiled spring 29 sun rounds the rod 31, one end resti'ngagainsi the bracket 25 and the other end against the 55 plug 23 and the plug serving to vary the ten sion of the spring. On the opposite side of the rod 21 to the arm 27 is pivoted a bell-crank lever composed of the arms 30 and and the extension 32. A setrscrew 33 servesss a (i stop, against which the extension comes in contact. The free end of. the arm i? sup-- ports a hardened point 34, and the free end of the arm 31 is pointed in wed-7e shape.

The casing 20 supports a binding-postfiii, u having a screw-threaded shank This binding-post and shank are insulated from the casing. 'A wire 37 connects the binding" posts and 38. A wire 39 connects the bindingpost 40 connected with the motor go with the binding-post -11, and a wire 42 con nects the biudingposts 43 and re.

With the parts in the position shown in the drawing in solid lines the electric circuit will be broken between the shank do and. point 3-1 and the pointed end of the arm will bear against the upper surface of the pointed end of the arm 31, thereby holding the circuit open. In this position the air-pressure is at its height. When the pressure has lowered 8o snfliciently so that the pointed end ot the arm 27 passes the pointed end of the arm 31, the force of the spring will force the arm 27 over suiiiciently to more the belhcraok arm and cause the circuit to be cliised. Upon the circuit being closed through the wire 27, post 35, point 3;, arm 3-1), the casing by wire 43 through the motor, and by Wire 39 to the supply the motor will be operated. which will drive the pump through the belt 45, conneet-- go and when sufficient air has been. pumped to bring the pressure up to the required amount the pointed end of the arm 27 will pass the pointed end of the arm 251. of the bell-crank lever, and v the spring 38 will force the arm 27 against the upper face of the arm 31. forcing the contactpoints apart, breaking the circuit, and stopping the motor and the pumping of air.

By this arrangement a quick make and break :00 is had which is necessary to prevent the formation of an are. 7

My improvements are equally applicable lspring, a pivoted bell-crank lever, and an 10 t -o pumping water. I arm carried by the' 1:od engaginglthe bell- I claim as my invention crank lever, one arm of t-llQbBll-OI' nk lever v The combinatibn ofasupport, a. diaphragm adapted to be moved into conpact lwitli the held by the siipp'ort, a casing connected to stationary contacts-point! tfhe sup'pert, a stationary contact-point insu- I CHARLES F. SPERY labed from the casing, a screw-threaded rod Witnesses:

- c0nneqted to"the diaphragm, a spring sur- B. A. KNIGHT, fou p'd ipg Lhemg], ap'edjusbjng-screw-for the A. O. BEHEL. 

